- Structural Design (Footings, Foundations, Structures) in BPA substations: Structures include towers, poles, frames, trusses, pedestals, racks, and others. Materials are predominantly steel and concrete, but other materials such as wood and aluminum are occasionally used. All work to be reviewed by BFTE senior engineers or technical team leads.
Tasks include:- Analysis of existing structures for structural adequacy in the case of new/increased loading and/or changed design criteria. Results of analysis will be used by team leads for decisions regarding use of existing structure as-is, modify existing structure, or replace.
- Structural design of new structures. Production of installation drawings, design criteria drawings, and minor structural detailing.
- Structural Design (Transmission Line Structures/Footings): BPA uses a wide variety of structure types as transmission line supports. These structure types include lattice steel (or aluminum) towers, single or multiple steel pole structures, single or multiple wood pole structures, concrete structures, and others. All work to be reviewed by BFTE senior engineers or technical team leads.
Tasks include:- Analysis of existing structures for structural adequacy in the case of new or increased loading and/or changed design criteria. Results of analysis will be used by team leads for decisions regarding use of existing structure as-is, modify existing structure, or replace.
- Structural design of new structures.
- Production of various drawings including installation drawings, design criteria drawings, minor detailing drawings, and others.
- Communication Structure Analysis: BPA has an extensive telecommunication network (predominantly microwave) that is constantly undergoing modification and enhancement. Structure types include lattice steel towers, steel monopoles, and others. All work to be reviewed by BFTE senior engineers or technical team leads.
Tasks include:- Analysis of existing structures for structural adequacy in the case of new or increased loading and/or changed design criteria. Results of analysis will be used by team leads for decisions regarding use of existing structure as-is, modify existing structure, or replace.
- Retrofit and modification designs.
- Develop and document structural design criteria used by outside vendors to design new communication structures.
- Building Design/Analysis: BPA has numerous buildings in their system that are constantly undergoing modifications and enhancements. Buildings in the system include single and multiple story structures that may be constructed of wood, structural steel, masonry, brick, concrete, or other materials. All work to be reviewed by BFTE senior engineers or technical team leads.
Tasks include:- Analysis of existing structures for modifications and/or retrofits. This task may include structural calculations and written reports.
- Design of new structures.
- Structural and/or seismic evaluations of existing structures. This task may include structural calculations and written reports.
- Design for strengthening existing building vertical and/or lateral load resisting systems.
- Design of anchorage of equipment and nonstructural components.
- Production of various drawings including installation drawings, design criteria drawings, minor detailing drawings, and others.
- Design of fall protection anchorage on new and existing buildings.
- Structure Maintenance and Program Sustainment:All work to be reviewed by BFTE senior engineers or technical team leads.
Tasks include:- Assistance with structural (non-climbing) inspections.
- Structural adequacy assessments.
- Structural retrofit designs (seismic strengthening, remodels, additions, addition of roof loading such as A/C units, etc.)
- Design of replacements related to aging infrastructure, particularly in the areas of steel corrosion and concrete deterioration.
- Design for replacements, refurbishments, and repairs related to unexpected damage of transmission line and substation structures (e.g. vehicle impacts, animal impacts, landslides, snow loading etc.).
- Assistance with material procurement tasks related to above repairs and replacements.
- Perform occasional Quality Assurance visits to both in-house and outside fabrication shops and provide recommendations for approval by BFTE senior engineers or technical team leads.
- Provide support to BFTE structural engineers working in Technology Innovation (TI) and Research and Development (R&D) related activities, which may include actual research or research support, testing and working with testing personnel and vendors, report writing and development, report presentation, travel to meetings, working with industry representatives, field visits, and providing assistance to BPA managers / team leads on developing justifications for funding.
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